M.V. Indoor Metal Clad VCB Modules – 12kV

• – IP 4x degree of protection externally
• – Foolproof mechanical interlock to prevent rack-in and rack-out of closed breaker
• – Explosion flaps on top of modules for exhaust purpose
• – Live parts are covered by automatic shutter when the breaker is racked out
• – The breaker cannot be moved from test to service position unless the breaker compartment door is closed
• – The breaker cannot be moved from test to service position or vice-versa with the breaker in closed condition
• – The breaker cannot be closed in -between test & service position
• – The breaker compartment door cannot be opened when the breaker is in service position or in-between service & test positions

– A Compact, Light, Weight construction, Optimized to give minimum Weight to KA ratio.

– Superior mechanical endurance limit Maintenance required only after 10,000 operations.

– A Unique ‘U’ shaped insulation barrier housing for the Vaccum interrupters, imparting maximum mechanical strength against electrodynamic forces and provides most effective phase to phase and phase to earth segregation.

– A screw type racking arrangement for easy insertion and withdrawl of the Circuit Breaker renders perfect contact pressure, independent of operator’s force

– A simple motor charged spring operating mechanism noted for its high performance reliability.

– A versatile mechanism capable of operating Vacuum Interrupters of any type . Hence, dependence on single source of Vacuum interrputers eliminated.

– Trip free mechanism suitable for repeated auto reclosing duty.

– Spring Charging time of less than 10 seconds.

– Totally enclosed construction for spring charging motor.

– Easy visual check of contact erosion.